.top_box {
  width: 100%;
  height: 40px;
  display: flex;
  position: sticky;
  align-items: center;
  background-color: white;
  justify-content: space-around;
}

.top_box img {
  width: 20px;
  height: 20px;
}

.demo_tabs {
  width: 60%;
}

.goods_title {
  padding: 5px;
  margin-top: 1px solid rgba(0, 0, 0, 0.1);
  background-color: white;
}

.goods_price {
  color: red;
  padding: 5px;
  background-color: white;
}

.user_discuss {
  margin-top: 5px;
  padding: 5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: white;
}
.user_discuss img {
  width: 20px;
  height: 20px;
}

.user_discuss_btn {
  display: flex;
  align-items: center;
}

.userinfo {
  display: flex;
  padding: 5px 10px;
  line-height: 45px;
  background-color: white;
  border-top: 1px solid rgba(0, 0, 0, 0.2);
}

.avatar_box {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.avatar {
  width: 45px;
  height: 45px;
}

.user_discuss_content {
  font-size: 12px;
  padding: 5px;
}

.user_discuss_img {
  width: 40px;
  height: 40px;
  padding: 5px;
}

.user_discuss_box {
  background-color: white;
}

.discuss_img img{
  width: 100%;
  margin: 0;
}